3RT1936-4EA2

The Siemens SIRIUS S2 size contactor and overload relay terminal cover are also compatible with the 3RW403 soft starter. The dimensions are approximately 55×22.5×40.2mm. It is installed above the terminal block to enhance protection and reduce the risk of accidental contact with metal terminals. It is suitable for use in panel maintenance and repair projects.

Share To

Siemens 3RT1936-4EA2 SIRIUS S2 contactor terminal cover

Product Positioning

The 3RT1936-4EA2 is a terminal cover for Siemens SIRIUS large series S2 size contactors and corresponding overload relays, and is also compatible with the 3RW403 soft starter. Installed above the box-type terminal block, it effectively prevents operators from accidentally touching live terminals, improving the safety of switchboard maintenance. This model is discontinued by the manufacturer; the current recommended specification is 3RT2936-4EA2. Kenxin Motors can assist in assessing whether it is directly interchangeable or requires additional parts.

Core Product Advantages and Features

Terminal protective cover

Installed above the box-type terminal block, reducing the risk of accidental contact with live terminals during maintenance.

One piece, multiple uses

Also compatible with SIRIUS S2 contactors, overload relays, and 3RW403 soft starters.

Dimensions are clearly defined

Measuring 55mm high × 22.5mm wide × 40.2mm deep, this design facilitates confirmation of installation space.

Easy to install

The snap-on design allows for on-site assembly and disassembly.

Production halt notice

The original manufacturer has discontinued production; it is recommended to use the compatible subsequent model 3RT2936-4EA2 instead.

project	Specification
Product Type	Terminal cover (protective cover for wiring terminals)
Applicable to	SIRIUS S2 size contactor and overload relay
Simultaneously applicable	3RW403 Soft Starter
External dimensions	Height 55 × Width 22.5 × Depth 40.2 mm
Function	Strengthen the protection against electric shock at terminal wiring points
Product Status	The original manufacturer has discontinued production; it is recommended to use 3RT2936-4EA2 instead.

Recommend

3RT1936-6A

This Siemens SIRIUS S2 size contactor main contact replacement kit is compatible with the 3RT1036 series and AC-3 22kW contactors. It includes movable and fixed contacts and mounting parts, and is suitable for regular maintenance and replacement of worn contacts. The original manufacturer has discontinued this product, and it is recommended to replace it with a compatible product from the SIRIUS 3RT2 series.

3RT1936-4BA31

Parallel connector for Siemens SIRIUS S2 size contactors, corresponding to the 3RT1036 series 3-pole contactors. This version does not include connection terminals and is commonly used to connect multiple contactors in parallel to expand contact capacity or form special control circuits. It is suitable for system integrators and panel manufacturers to refer to when purchasing maintenance spare parts.

3RT1936-1TR00

The Siemens SIRIUS S2 and S3 size contactor diode surge suppression assembly is designed for DC 24V coil circuits. It does not include an LED indicator and is installed at the bottom of the contactor. It can absorb back EMF surges when the coil is de-energized, protecting nearby relays and electronic components for safe operation.